MADE IN AMERICA- High quality, Industrial Grade Professional Tools made in the U.S.A. COMPLETE METRIC SET contains all common, popular MM Sizes: 1.5, 2, 2.5, 3, 4, 5, 6, 8, & 10 EKLIND hex keys (allen wrenches) are used to drive internal hexagon socket (allen head) fasteners OPTIMUM STRENGTH- These EKLIND tools are made with EKLIND Alloy Steel that is heat treated, quenched and tempered for optimum strength, torque and ductility for safety and coated with a rust resistant finish FAST AND EFFICIENT- The EKLIND Ball-Hex keys work at up to a 30 degree angle for access to hard to reach socket-headed fasteners ACCESS TIGHT SPACES- The Stubby short arm Ball key from EKLIND helps get your job done even in tight spaces while the ball style allows the key to tilt and provide greater hand clearance IDENTIFY YOUR TOOLS- Metric sizes are color coded in blue so you can reach for the correct tool quickly KEEP YOUR KEYS ORGANIZED- A plastic holder firmly holds each key in a sized-marked hole so you always have the size you need at-hand MEETS OR EXCEEDS ALL APPLICABLE STANDARDS- EKLIND tools meet or go beyond the standard regulations set forth in ANSI, ASME, RoHS, REACH, CA Prop 65 and Dodd-Frank Conflict Minerals Legislation